I'm a relatively new Lightup user, so please bear with me. I'm trying to export a site insolation plan image as a saved still image. I've got what I want up on the screen, as shown in the screen-cap below (Capture.PNG).

What I see on screen

Capture.PNG (371.67 KiB) Viewed 2120 times

I follow the instructions for exporting a still image, set to 300dpi at A3 (which is the crop box shown above), save it, and get something that looks like this: